Hi
I want to know what is new in SEP12.1 ?
Thanks
check these link
Difference between SEP 11 and SEP 12
https://www-secure.symantec.com/connect/articles/few-feature-differences-between-sep-11x-and-sep-121
What is new in Symantec Endpoint Protection 12.1?
http://www.symantec.com/docs/TECH163413
whats new in SEP 12.1 RU 1 MP1
https://www-secure.symantec.com/connect/articles/what-s-new-sep-121-ru1-mp1
Few differences between SEP 11.x and SEP 12.1 EE
https://www-secure.symantec.com/connect/articles/few-feature-differences-between-sep-11x-and-sep-121#comment-6055391
Below forum is also help you
https://www-secure.symantec.com/connect/forums/sep-121-ru1-mp1
The Latest Version of SEP 12.1.1101.401 (RU1 MP1) has -
Check these Articles:
https://www-secure.symantec.com/connect/articles/latest-symantec-endpoint-protection-releases
Hope that helps!!!